Number making claims = 78 Number making claims = 129 a. Use a = 0.05. Test to determine whether the claim rates differ between single and married male policyholders. z-value (to 2 decimals) p-value (to 4 decimals) We Select your answer - that there is the difference between claim rates. b. Provide a 95% confidence interval (to 4 decimals) for the difference between the proportions for the two populations. Enter negative answer as negative number. O- Icon Key

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Question
1 Question 15 of 15
suonsano
13.
14.
15.
OA large automobile insurance company selected samples of single and married male policyholders and recorded the number who made an insurance claim over
the preceding three-year period.
Single Policyholders
Married Policyholders
n1 = 390
n2 = 860
Number making claims = 78
Number making claims = 129
a. Use a = 0.05. Test to determine whether the claim rates differ between single and married male policyholders.
z-value
(to 2 decimals)
p-value
(to 4 decimals)
We
Select your answer - v that there is the difference between claim rates.
b. Provide a 95% confidence interval (to 4 decimals) for the difference between the proportions for the two populations. Enter negative answer as negative
number.
0= Icon Key
« Question 15 of 15
Transcribed Image Text:1 Question 15 of 15 suonsano 13. 14. 15. OA large automobile insurance company selected samples of single and married male policyholders and recorded the number who made an insurance claim over the preceding three-year period. Single Policyholders Married Policyholders n1 = 390 n2 = 860 Number making claims = 78 Number making claims = 129 a. Use a = 0.05. Test to determine whether the claim rates differ between single and married male policyholders. z-value (to 2 decimals) p-value (to 4 decimals) We Select your answer - v that there is the difference between claim rates. b. Provide a 95% confidence interval (to 4 decimals) for the difference between the proportions for the two populations. Enter negative answer as negative number. 0= Icon Key « Question 15 of 15
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